11055011550 has 48 divisors (see below), whose sum is σ = 29908835712. Its totient is φ = 2680002400.

The previous prime is 11055011537. The next prime is 11055011551. The reversal of 11055011550 is 5511055011.

It is a self number, because there is not a number n which added to its sum of digits gives 11055011550.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11055011551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3348354 + ... + 3351653.

It is an arithmetic number, because the mean of its divisors is an integer number (623100744).

Almost surely, 2^11055011550 is an apocalyptic number.

11055011550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11055011550 is an abundant number, since it is smaller than the sum of its proper divisors (18853824162).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11055011550 is a wasteful number, since it uses less digits than its factorization.

11055011550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6700033 (or 6700028 counting only the distinct ones).

The product of its (nonzero) digits is 625, while the sum is 24.

Adding to 11055011550 its reverse (5511055011), we get a palindrome (16566066561).

The spelling of 11055011550 in words is "eleven billion, fifty-five million, eleven thousand, five hundred fifty".